<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="../../assets/css/bootstrap.min.css">
    <style>
        .bd-example {
            position: relative;
            padding: 1.5rem;
            margin-right: 0;
            margin-left: 0;
            border: .2rem solid #1887E0;
        }
        iframe {
            padding-top: 20px;
            width: 100%;
            height: 300px;
        }
    </style>
</head>

<body>
    <div class="container-fluid">
        <div class="col-md-9 col-xl-8 py-md-3 pl-md-5 bd-content offset-xl-2">
            <fieldset class="bd-example">
                <legend>示例 A</legend>
                <p>
                    <label for="select">Example select</label>
                    <select id="select">
                        <option value="">Option 1</option>
                        <option value="">Option 2</option>
                        <option value="">Option 3</option>
                    </select>
                </p>
                <p>
                    <label>
                        <input type="checkbox" value="">
                        Check this checkbox
                    </label>
                </p>
                <p>
                    <label>
                        <input type="radio" name="optionsRadios" id="optionsRadios1" value="option1" checked="">
                        Option one is this and that
                    </label>
                    <label>
                        <input type="radio" name="optionsRadios" id="optionsRadios2" value="option2">
                        Option two is something else that's also super long to demonstrate the wrapping of these fancy
                        form controls.
                    </label>
                    <label>
                        <input type="radio" name="optionsRadios" id="optionsRadios3" value="option3" disabled="">
                        Option three is disabled
                    </label>
                </p>
                <p>
                    <label for="textarea">Example textarea</label>
                    <textarea id="textarea" rows="3"></textarea>
                </p>
                <p>
                    <label for="date">Example date</label>
                    <input type="date" id="date">
                </p>
                <p>
                    <label for="time">Example time</label>
                    <input type="time" id="time">
                </p>
                <div>
                    <label for="a_text">text A: </label>
                    <input type="text" name="a_text" id="a_text">
                </div>
            </fieldset>
            <iframe src="./b.html" frameborder="0" scrolling="no"></iframe>
        </div>
    </div>
</body>

</html>